[l1tany11]

Because it’s just a simple rail.

[mrlonglong]

But you'd have quickly realised it was the wrong way around if you looked through it. He didn't look.

[Suppafly]

It was a photo-op, someone probably handed him the gun 30 seconds before the photo was taken. The may have installed it backwards to troll him. It's not like the commander of a giant vessel is out shooting over the side at the ocean in the normal course of their duties.

[mrlonglong]

Apparently he's been taken off duties for 'retraining'.